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stellarik [79]
3 years ago
13

Solve 2/3 a number plus 4 is 7

Mathematics
1 answer:
eimsori [14]3 years ago
7 0

2/3n +4 = 7

2/3n = 3

n = 3 / 2/3

n = 4 1/2

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What is 17.70 = 7/2m + 13.50 ?
Fantom [35]

<u>answer:</u>  m = 1.2

<u>work:</u>

17.70 = \frac{7}{2} m + 13.50  | subtract 13.50 and move it over

4.2 = \frac{7}{2}m  | divide by 7/2

1.2 = m  | final answer

6 0
3 years ago
Which is true about the degree of the sum and difference of the polynomials 3x5y – 2x3y4 – 7xy3 and –8x5y 2x3y4 xy3?.
ki77a [65]

The degree of the sum and difference of the polynomials are 6 and 7 respectively.

given polynomials are:

3x^5-2x^3y^4-7xy^3

-8x^5y+2x^3y^4+xy^3

the sum of polynomials = -5x^5y-6xy^3

the difference of polynomials = 11x^5y-4x^3y^4-8xy^3

<h3>what is the degree of a polynomial?</h3>

A polynomial's degree is the highest or the greatest power of a variable in a polynomial equation.

degree of sum = monomial with highest power = 5+1=6

degree of difference = monomial with highest power = 3+4 = 7

therefore, the degree of the sum and difference of the polynomials are 6 and 7 respectively.

to get more about polynomials refer to:

brainly.com/question/1600696

4 0
2 years ago
Can u help? thank you.​
zysi [14]

Answer:

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Step-by-step explanation:

Point B is 4 up and 2 over from point A. So, the midpoint will be 4/2 = 2 up and 2/2 = 1 over, at (1, 0).

The ratio of rise to run between A and B is ...

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The perpendicular line will have a slope that is the opposite reciprocal of this, -1/2.

Then the point-slope equation for the perpendicular bisector is ...

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

  y -0 = -1/2(x -1) . . . .line with slope -1/2 through point (1, 0)

  y = -1/2x +1/2 . . . . simplified to slope-intercept form

4 0
2 years ago
Need help on this question. Anything is appreciated:) (8th grade math)
satela [25.4K]

Answer:

Step-by-step explanation:

Put 5 in frist box and literally any number other than 15 in the other

7 0
3 years ago
Multiply (5y+x)(5y-x)
mestny [16]

Answer:

25y²-x²

Step-by-step explanation:

6 0
2 years ago
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